Struct EventFold 

pub struct EventFold { /* private fields */ }

The brain as a meta-fold: Fold<Event, BrainState>.

Processes the existing Event substrate stream. Each event is interpreted via event::interpret() and routed to the relevant posteriors. Deterministic: same events in the same order → same BrainState.

Implementations

impl EventFold

pub fn new(entity_capacity: usize) -> Self

Trait Implementations

impl Fold<Event, BrainState> for EventFold

fn initial(&self, _context: &FoldContext) -> BrainState

Get the initial state before any entries are processed.

fn step( &self, state: BrainState, event: &Event, _ctx: &FoldContext, ) -> BrainState

Process a single entry and return the new state.

fn finalize(&self, state: BrainState, _context: &FoldContext) -> BrainState

Finalize the state after all entries are processed.

fn derive<'a, I>(&self, entries: I, context: &FoldContext) -> FoldOutcome<S>

where Self: Sized, I: IntoIterator<Item = &'a L>, L: 'a,

Derive state from an iterator of entries.

fn derive_filtered<'a, I, F>( &self, entries: I, context: &FoldContext, filter: F, ) -> FoldOutcome<S>

where Self: Sized, I: IntoIterator<Item = &'a L>, L: 'a, F: Fn(&L) -> bool,

Derive state with a filter.